I've taken all descriptions from the game .act files. None are my own.
In this case, I'll copy the parent description to the A and B property. In some cases this is not wanted, and in some cases this isn't possible (some special cases).
If descriptions are empty or missing, this means the .act files had none for them, and therefor I left them blank, simply because I don't know what they mean. It's up to the users to tell me (and also, if they feel the description is not entirely acurate). Again, I have limited knowledge about what each property actually means and does, so you people have to tell me